Solar Panels: How many watts?
How many watts of solar panels would I need to keep two 12-volt batteries charged? I don’t know the specs on the batteries. I’m looking for a ballpark number. What about portable panels vs those mo...
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200W will get me by with limited usage of 12V items in the CO mountains, late fall boondocking. That includes 2-3 hours of some LED lighting, USB phone charging, CO detector, fridge running on propane, some water pump usage and the big one, heater fan kicking on with the thermostat set at 52f and outside temps dropping into the teens f. My TT is considered a 3-season trailer with decent insulation but I don't have separate tank heaters. With two Group 24 12V batteries, I do get pretty close to 50% discharge rate by the time the sun comes up.
I've since added a 1500W inverter and will be changing up to (2) GC2 6V batteries along with possibly adding an additional 200W solar panels if I need them. If I do add solar panels, I will add to the mounted panels as I don't want to bother with portable units. With mounted panels, I just need to be sure and set-up with no trees above.
I've since added a 1500W inverter and will be changing up to (2) GC2 6V batteries along with possibly adding an additional 200W solar panels if I need them. If I do add solar panels, I will add to the mounted panels as I don't want to bother with portable units. With mounted panels, I just need to be sure and set-up with no trees above.
